Itineraries flown on 20+ days in the Jun 6 – Jul 31, 2026 schedule · each leg’s record Aug 2025 – Jul 2026

No clear winner: Alaska’s GEG → PDX flights land within a few points of 87% on time whatever the hour.

Nonstops


Alaska	GEG	PDX	1h 14m	87%	0.9%	1,759	Flying now

Best connections, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Portland on time. Total trip = scheduled departure to arrival, layover included. Layovers up to 4 hours. Pick a connection for the details.


Alaska Details →	GEG 06:13 → SEA 07:24AS 279	2h 50m Seattle	SEA 10:14 → PDX 11:21AS 3090 · flown by SkyWest	5h 08m	100%	96%
Alaska Details →	GEG 08:53 → BOI 11:02AS 2031 · flown by Horizon	2h 27m Boise	BOI 13:29 → PDX 13:47AS 2209 · flown by Horizon	4h 54m	100%	94%
Alaska Details →	GEG 05:07 → SEA 06:15AS 2065 · flown by Horizon	2h 30m Seattle	SEA 08:45 → PDX 09:49AS 3132 · flown by SkyWest	4h 42m	100%	92%
Southwest Details →	GEG 05:00 → SMF 06:50WN 367	3h 22m Sacramento	SMF 10:12 → PDX 11:42WN 949	6h 42m	100%	88%
Delta Details →	GEG 09:50 → SLC 12:41DL 4444 · flown by SkyWest	2h 43m Salt Lake City	SLC 15:24 → PDX 16:19DL 1244	6h 29m	100%	88%
Delta Details →	GEG 05:30 → SEA 06:40DL 2218	50m Seattle	SEA 07:30 → PDX 08:39DL 3953 · flown by SkyWest	3h 09m	94%	87%
Delta Details →	GEG 17:10 → SLC 19:59DL 1503	2h 51m Salt Lake City	SLC 22:50 → PDX 23:44DL 1373	6h 35m	98%	86%
Alaska Details →	GEG 09:06 → SEA 10:18AS 2069 · flown by Horizon	3h 27m Seattle	SEA 13:45 → PDX 14:48AS 3204 · flown by SkyWest	5h 42m	98%	86%
Tight connection: often missed
Delta Details →	GEG 16:20 → LAX 19:14DL 3799 · flown by SkyWest	46m Los Angeles	LAX 20:00 → PDX 22:13DL 2457	5h 59m	70%	57%
Alaska Details →	GEG 13:26 → SEA 14:40AS 293	1h 15m Seattle	SEA 15:55 → PDX 16:55AS 686	3h 29m	73%	53%
United Details →	GEG 19:07 → SFO 21:29UA 6042 · flown by SkyWest	1h 23m San Francisco	SFO 22:52 → PDX 00:50 +1UA 2384	5h 43m	14%	11%

Same layover, different day-part

How often the first flight arrives too late to connect (45 min minimum), for one-ticket layovers of 45–80 minutes.

Morning

BOI · 1h 06m · leaves 06:00 4%

SEA · 50m · leaves 05:30 6%

PHX · 51m · leaves 06:30 14%

Afternoon and evening

SLC · 56m · leaves 19:08 15%

SEA · 56m · leaves 16:30 15%

LAX · 46m · leaves 16:20 30%

Delays build through the day, so an afternoon first leg eats the layover. A short connection is fine early in the morning and a gamble later on.

Mixing airlines

One ticketMiss it and the airline rebooks you; bags go through. 45 min is enough.

Separate ticketsMiss it and you buy a new ticket. Re-check bags, clear security again: we require 90 min.


Delta DL 2218 GEG 05:30 → SEA Alaska AS 3090 SEA 10:14 → PDX Connection details →	3h 34m	5h 51m	97%	92%
Alaska AS 2065 GEG 05:07 → SEA Delta DL 3818 SEA 09:30 → PDX Connection details →	3h 15m	5h 32m	100%	90%
Delta DL 1440 GEG 05:20 → SLC Alaska AS 2333 SLC 11:22 → PDX Connection details →	3h 22m	7h 03m	98%	88%

Rank all connections, any airlines →

Regional partners count as the airline that sells them: SkyWest flying Delta Connection is one Delta ticket.

How these are worked out. Makes the connection: share of the last year’s flights where the first flight arrived with at least 45 minutes to spare (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled and arriving within 15 minutes. Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON